Improvement in cog-gearing



`LUTHER, R. FAUGHT. Improv-ement in Cog Gearing..

Patented ocr. s, l1871.'

u am

UNITED STATES PATENT QEEIGE,

LUTHER R. FAUGHT, OF PHILADELPHIA, PENNSYLVANIA.

IMPRCVEMENT IN COG-GEARING.

To all whom it may concern:

Be it kown that I, LUTHER FAUGHT, of the` The injurious effects upon gearing from the above cause is much increased when cog-wheels so exposed are employed to drive greatly-increased speed from a slow motion of the driving-power. This is the case in horse-powers, in field thrashing-machines, and in all mill-gearing for transmitting power and increasing speed from a slowly-revolving water or wind-wheel. In horsepowers, especially, as heretofore constructed, the very rapid wear and frequent breakage or necessity of renewal of the pinion-gearin g with the first driver is a source of frequent stoppage and annoyance. Now the main object of my invention is to provide a means of attaining in the operation of such gearing the highest mechanical perfection, and to guard against everything which might detract from its efficiencyg and the nature of my improvement consists in providing one of a pair of wheels gearing together with revolving cylindrical cogs or rollers which have their axes in the pitch circle of the wheel and are confined endwise between ilan ges. The improved revolving cog may be bored out through its entire length and turn upon a stationary axle, or it may be solid, and provided with two pivots revolving in corresponding sockets or step-bearings in the two fle nges of the wheel; and with either construction of the revolving cogs I combine a means of lubricating the frctional end surfaces from the inside in such a manner as to eii'ectually exclude all dust or grit from the wearing surfaces of the rollers, and as these rollers have no frictional rubbing contact with the cogs of the other wheel, but merely roll upon the fixed cogs during contact, thebearing surfaces of both are thereby exempted from undue friction and wear.

0n reference to the annexed drawing, making pary of this speeiiieation, Figure l is a transverse section of a spur-pinion of my improved construction, showing on one side a roller revolving upon a stationary axle, and showing 011 the opposite side a pivoted roller revolving in socket bearings in the flanges of the wheel. Fig. 2 is a plan of Fig. 1, partly in section. Fig. 3 represents a bevel pinion of my improved construction, showing both modifications in the construction ofthe rollers. Fig. 4 illustrates a modified construction of the wheel, whereby both iianges are cast solid with the wheel, the rollers and axles being set in a sand core within the mold and the metal in the flanges cast around the projecting ends of the axles in the manner shown. In the plan, Fig. 2 representing a pinion of twelve cogs or rollers, one-lialf of their number, A A A, are of the kind revolving upon stationary axles a a a, and the remaining number, B B B,-have end-bearings or pivots b b b running in step-bearings o c c of ilanges C C. One of these flanges, O, is cast in one piece with the hub and body D. `The flange C is bored out to fit a corresponding projection, el, of the hub, and is further secured to the wheel by screws e e. In cases where the motion of the wheel is very slow, or frequently interrupted, the rollers may be each separately lubricated in the manner fully shown on the left side of Figs. 1, 2, and 8, through oilholes fj' placed at the side ofthe axles or pivots; but when the motion of the wheel is rapid and continuous I prefer the use of the annular lubricating channel g, provided within the inner portion of the flange G or C', and communicating, by means of outwardly-extending passages h IL,

' with all the axles androllers in the wheel in such a a, and thus removing any solidified matter which might otherwise obstruct the proper iiow of the lubricator. By feeding the lubricator to the rollers in this described manner and expelling the superiiuous portions thereof in an outay a or D, and containing, also, the ellaunelsjj or q h h for lubricating the frietional end siufaces from Within, the whole operating iu the manner and for the purpose set forth.

LUTHER R. FAUGHT.

ituesses WM. HELME, J oi-IN H. REDFIELD. 

